diff options
Diffstat (limited to 'source/fitz/halftone.c')
| -rw-r--r-- | source/fitz/halftone.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/source/fitz/halftone.c b/source/fitz/halftone.c index f0705790..58153fcf 100644 --- a/source/fitz/halftone.c +++ b/source/fitz/halftone.c @@ -528,7 +528,8 @@ fz_bitmap *fz_new_bitmap_from_pixmap_band(fz_context *ctx, fz_pixmap *pix, fz_ha if (!pix) return NULL; - assert(pix->alpha == 0); + if (pix->alpha != 0) + fz_throw(ctx, FZ_ERROR_GENERIC, "pixmap may not have alpha channel to convert to bitmap"); fz_var(ht_line); fz_var(out); @@ -544,7 +545,7 @@ fz_bitmap *fz_new_bitmap_from_pixmap_band(fz_context *ctx, fz_pixmap *pix, fz_ha thresh = &do_threshold_4; break; default: - assert(!"Unsupported number of components"); + fz_throw(ctx, FZ_ERROR_GENERIC, "pixmap must be grayscale or CMYK to convert to bitmap"); return NULL; } |