From 556a18a855b3641185c982cc31740b5462b3f970 Mon Sep 17 00:00:00 2001 From: Michael Vrhel Date: Thu, 3 Aug 2017 16:01:34 -0700 Subject: Only allow overprint when color spaces are subtractive. Fixes on issue on page 14 of altona test. --- source/fitz/draw-device.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/source/fitz/draw-device.c b/source/fitz/draw-device.c index 72c0ab74..bab1c5a6 100644 --- a/source/fitz/draw-device.c +++ b/source/fitz/draw-device.c @@ -356,6 +356,9 @@ set_op_from_spaces(fz_context *ctx, fz_overprint *op, const fz_pixmap *dest, con if (!op) return; + if (!fz_colorspace_is_subtractive(ctx, src) || !fz_colorspace_is_subtractive(ctx, dest->colorspace)) + return; + sn = fz_colorspace_n(ctx, src); dn = dest->n - dest->alpha; dc = dn - dest->s; -- cgit v1.2.3