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alpha: Fix one_over_kc calculation
author
Doug Nazar
<nazard@nazar.ca>
Mon, 9 Sep 2019 00:43:17 +0000
(20:43 -0400)
committer
Tim-Philipp Müller
<tim@centricular.com>
Tue, 10 Sep 2019 09:32:16 +0000
(10:32 +0100)
On arm/aarch64, converting from float directly to unsigned int uses
a different opcode and negative numbers result in 0. Cast to
signed int first.
gst/alpha/gstalpha.c
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diff --git
a/gst/alpha/gstalpha.c
b/gst/alpha/gstalpha.c
index
82ad981
..
6e03871
100644
(file)
--- a/
gst/alpha/gstalpha.c
+++ b/
gst/alpha/gstalpha.c
@@
-2348,7
+2348,7
@@
gst_alpha_init_params_full (GstAlpha * alpha,
tmp = MIN (tmp, 255);
alpha->accept_angle_ctg = tmp;
tmp = 1 / (kgl);
- alpha->one_over_kc =
255 * 2 * tmp - 255
;
+ alpha->one_over_kc =
(gint) (255 * 2 * tmp - 255)
;
tmp = 15 * y / kgl;
tmp = MIN (tmp, 255);
alpha->kfgy_scale = tmp;