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authorThom Johansen <thomj@rockbox.org>2007-02-26 00:58:07 +0000
committerThom Johansen <thomj@rockbox.org>2007-02-26 00:58:07 +0000
commitdeb69d280ddfa9ac0874683cca36ecd9fef1c7dc (patch)
tree1035a8499f7e45556eca9c1d8c0b27d5756b6cc5 /apps/eq.c
parenta7fabf0741c91fb0a2c28b2d8357bcc4630300af (diff)
downloadrockbox-deb69d280ddfa9ac0874683cca36ecd9fef1c7dc.tar.gz
rockbox-deb69d280ddfa9ac0874683cca36ecd9fef1c7dc.zip
Wrap filter_bishelf_coefs with HAVE_SW_TONE_CONTROLS to not waste bytes on targets that don't use it.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12490 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/eq.c')
-rw-r--r--apps/eq.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/apps/eq.c b/apps/eq.c
index 1d74db790e..e06bd3e09e 100644
--- a/apps/eq.c
+++ b/apps/eq.c
@@ -147,6 +147,7 @@ void filter_shelf_coefs(unsigned long cutoff, long ad, long an, int32_t *c)
c[2] = -DIV64(a1, a0, 31);
}
+#ifdef HAVE_SW_TONE_CONTROLS
/**
* Calculate second order section filter consisting of one low-shelf and one
* high-shelf section.
@@ -198,6 +199,7 @@ void filter_bishelf_coefs(unsigned long cutoff_low, unsigned long cutoff_high,
*c++ = -FRACMUL_SHL(FRACMUL(a0, a3) + FRACMUL(a1, a2), rcp_a0, 5);
*c++ = -FRACMUL_SHL(FRACMUL(a1, a3), rcp_a0, 5);
}
+#endif
/* Coef calculation taken from Audio-EQ-Cookbook.txt by Robert Bristow-Johnson.
* Slightly faster calculation can be done by deriving forms which use tan()